Pest control did not close big window.

Found bed bugs in sheets of the bedroom of my 1 bedroom apartment, pest control came, used "Bedlam" and "Seclira", I closed the bedroom window but forgot to close the balcony sliding door, came back 5 hours later to find he hadn't closed it either (or turned off the oscillating fan that I also forgot) and I smelt nothing.

Is it fine or did he goof and I need to call the super to get him back?